Kash, D. E. (1989). Perpetual innovation: The new world of competition. United States: BasicBooks.
Trích dẫn kiểu ChicagoKash, Don E. Perpetual Innovation: The New World of Competition. United States: BasicBooks, 1989.
ציטוט MLAKash, Don E. Perpetual Innovation: The New World of Competition. United States: BasicBooks, 1989.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.